SyntaxAnalyzer.java

package Lab3;
import java.io.IOException;
import java.nio.file.FileSystems;
import java.nio.file.Files;
import java.nio.file.Path;

public class SyntaxAnalyzer {
 public static void main(String[] args) {

 if(args.length > 0) {
 String input;

 try {
 Path path = FileSystems.getDefault().getPath(args[0]);

 // Java 11+ convenience method
 input = Files.readString(path);

 Parser parser = new Parser(input);
 parser.start();

 } catch (IOException e) {
 System.out.println("FILE ERROR: File not found \"" + e.getMessage() + "\".");
 }
 } else
 System.out.println("FILE ERROR: No filename provided.");
 }
}